Hidrocarburi, bogate in C3-4, distilat petrolier, Masa de reactie a 1-(1,2,3,4,5,6,7,8-octahidro-2,3,8,8-tetrametil-2-naftil)etan-1-
ona si 1-(1,2,3,4,6,7,8,8a-octahidro-2,3,8,8-tetrametil-2-naftil)etan-1-ona si 1-
(1,2,3,5,6,7, 8,8a-octahidro-2,3,8,8-tetrametil-2-naftil)etan-1-ona⁽